I'll work on it. Here's some HAMB overdrive stuff.
http://www.jalopyjournal.com/forum/showthread.php?t=173331http://www.jalopyjournal.com/forum/showthread.php?t=134582I love my overdrive!! This is about the 6th or 7th car I've had with overdrive. I used the column shift tube from the 51 Ford I scored the engine and trans from, on a 39 steering shaft and box. Everything lined up great. I wired it up in the stock configuration. I'm using much taller (3.55:1) gears so I can run the flathead at low rpm on the interstate. It works good on a light (Model A coupe) car. I run 1st gear-then 2nd gear then either 2nd overdrive to 3rd overdrive or to 3rd underdrive then to 3rd overdrive. 2nd overdrive and 3rd underdrive are about the same ratio. The engine has compression braking in overdrive, but freewheels in underdrive unless the overdrive lockout cable is pulled out (only do this stopped) . You can push the cable in while moving, but only pull it out when the car is stopped. When I come to a corner, I downshift to 2nd (overdrive) and use compression braking. As I enter the turn, or slighhtly before, it automatically downshifts (at about 26mph) to underdrive and goes into freewheel mode. I hit the gas in 2nd underdrive and run her up over 30mph--let my foot off the gas and she shifts into overdrive--then back on the gas til I'm ready to shift to 3rd. In overdrive, cruising, I can stomp on the gas (actuating the accelerator kickdown switch) and drop her into "passing gear" (3rd underdrive), then, when I've passed the late model front wheel drive car, I let my foot off the gas and she shifts back into overdrive. When you park the car with the overdrive engaged, shift to reverse which automatically (mechanically) locks out the overdrive, and apply the park brake.
overspray
